Redis-Cluster实战-

时间 2019-12-01

标签 redis cluster 实战栏目 Redis 繁體版

原文原文链接

Redis-Cluster实战-node

转载请注明出处哈:http://carlosfu.iteye.com/blog/2240426 redis

1、准备redis(下载、编译、安装、配置目录、数据目录)app

1. 下载、编译、安装工具

Java代码 spa

cd /opt/soft
wget http://download.redis.io/releases/redis-3.0.3.tar.gz
tar xzf redis-3.0.3.tar.gz
cd redis-3.0.3
make
make install

Java代码视频

cd /opt/soft/redis-3.0.3
mkdir -p data
mkdir -p conf

3.创建软连接：server

Java代码 blog

ln -s /opt/soft/redis-3.0.3 /opt/soft/redis

2、配置、启动Redis节点（本例子以3主、3从组成Redis-Cluster）get

(1) 配置redis节点，在conf目录下添加6个(7000-7005)redis-${port}.conf做为6个节点的配置文件

其中7000-7005是六个端口号

Java代码

port 7000
cluster-enabled yes
cluster-config-file nodes-7000.conf
cluster-node-timeout 5000
dir "/opt/soft/redis/data/"
appendonly yes
appendfilename "appendonly-7000.aof"
daemonize yes

生成另外5个文件

Java代码

sed 's/7000/7001/g' redis-7000.conf > redis-7001.conf
sed 's/7000/7002/g' redis-7000.conf > redis-7002.conf
sed 's/7000/7003/g' redis-7000.conf > redis-7003.conf
sed 's/7000/7004/g' redis-7000.conf > redis-7004.conf
sed 's/7000/7005/g' redis-7000.conf > redis-7005.conf

(2) 启动6个节点。

Java代码

redis-server /opt/soft/redis/conf/redis-7000.conf
redis-server /opt/soft/redis/conf/redis-7001.conf
redis-server /opt/soft/redis/conf/redis-7002.conf
redis-server /opt/soft/redis/conf/redis-7003.conf
redis-server /opt/soft/redis/conf/redis-7004.conf
redis-server /opt/soft/redis/conf/redis-7005.conf

查看节点是否都已经启动：

Java代码

[@zw_53_162 conf]#
[@zw_53_162 conf]# ps -ef | grep redis
root 26007 1 0 21:56 ? 00:00:00 redis-server *:7000 [cluster]
root 26011 1 0 21:56 ? 00:00:00 redis-server *:7001 [cluster]
root 26019 1 0 21:56 ? 00:00:00 redis-server *:7002 [cluster]
root 26023 1 0 21:56 ? 00:00:00 redis-server *:7003 [cluster]
root 26033 1 0 21:56 ? 00:00:00 redis-server *:7004 [cluster]
root 26047 1 0 21:56 ? 00:00:00 redis-server *:7005 [cluster]

查看单个节点：（此时六个节点是分散的，没有造成集群，全部cluster_state=fail）

Java代码

[@zw_53_162 conf]# redis-cli -c -p 7000
127.0.0.1:7000> cluster info
cluster_state:fail
cluster_slots_assigned:0
cluster_slots_ok:0
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:1
cluster_size:0
cluster_current_epoch:0
cluster_my_epoch:0
cluster_stats_messages_sent:0
cluster_stats_messages_received:0

3、使用Redis-Cluster的Ruby工具完成集群的搭建：

Java代码

/opt/soft/redis/src/redis-trib.rb create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005

安装信息：

Java代码

>>> Creating cluster
# ping全部节点，若是有一个不OK，安装就结束了。
Connecting to node 127.0.0.1:7000: OK
Connecting to node 127.0.0.1:7001: OK
Connecting to node 127.0.0.1:7002: OK
Connecting to node 127.0.0.1:7003: OK
Connecting to node 127.0.0.1:7004: OK
Connecting to node 127.0.0.1:7005: OK
# 主从节点确认
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
127.0.0.1:7000
127.0.0.1:7001
127.0.0.1:7002
Adding replica 127.0.0.1:7003 to 127.0.0.1:7000
Adding replica 127.0.0.1:7004 to 127.0.0.1:7001
Adding replica 127.0.0.1:7005 to 127.0.0.1:7002
M: 11e6c12da2521b1877c93cf64437af23b21889b3 127.0.0.1:7000
slots:0-5460 (5461 slots) master
M: cee69d4f42bce422e864e0324679f1fbf7506dba 127.0.0.1:7001
slots:5461-10922 (5462 slots) master
M: 32ff9de3a4bcdc9423fdf269b0d1588d50fd18e3 127.0.0.1:7002
slots:10923-16383 (5461 slots) master
S: 0e5d897a3be6033ef6733fc37a974124e9e89cc8 127.0.0.1:7003
replicates 11e6c12da2521b1877c93cf64437af23b21889b3
S: b294779edee369c669c44848d71d599c42a0bfe8 127.0.0.1:7004
replicates cee69d4f42bce422e864e0324679f1fbf7506dba
S: f57f64229b6a7501d42bd70192eec4acd56422d6 127.0.0.1:7005
replicates 32ff9de3a4bcdc9423fdf269b0d1588d50fd18e3
Can I set the above configuration? (type 'yes' to accept): yes(人工确认安装是否成功)
#meet
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join..
>>> Performing Cluster Check (using node 127.0.0.1:7000)
#分配slots
M: 11e6c12da2521b1877c93cf64437af23b21889b3 127.0.0.1:7000
slots:0-5460 (5461 slots) master
M: cee69d4f42bce422e864e0324679f1fbf7506dba 127.0.0.1:7001
slots:5461-10922 (5462 slots) master
M: 32ff9de3a4bcdc9423fdf269b0d1588d50fd18e3 127.0.0.1:7002
slots:10923-16383 (5461 slots) master
M: 0e5d897a3be6033ef6733fc37a974124e9e89cc8 127.0.0.1:7003
slots: (0 slots) master
replicates 11e6c12da2521b1877c93cf64437af23b21889b3
M: b294779edee369c669c44848d71d599c42a0bfe8 127.0.0.1:7004
slots: (0 slots) master
replicates cee69d4f42bce422e864e0324679f1fbf7506dba
M: f57f64229b6a7501d42bd70192eec4acd56422d6 127.0.0.1:7005
slots: (0 slots) master
replicates 32ff9de3a4bcdc9423fdf269b0d1588d50fd18e3
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

确认集群是否安装成功：

Java代码

[@zw_53_162 redis]# redis-cli -c -p 7000
127.0.0.1:7000> cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:6
cluster_size:3
cluster_current_epoch:6
cluster_my_epoch:1
cluster_stats_messages_sent:985
cluster_stats_messages_received:985

查看slots使用状况：

Java代码

127.0.0.1:7000> cluster slots
1) 1) (integer) 5461
2) (integer) 10922
3) 1) "127.0.0.1"
2) (integer) 7001
4) 1) "127.0.0.1"
2) (integer) 7004
2) 1) (integer) 10923
2) (integer) 16383
3) 1) "127.0.0.1"
2) (integer) 7002
4) 1) "127.0.0.1"
2) (integer) 7005
3) 1) (integer) 0
2) (integer) 5460
3) 1) "127.0.0.1"
2) (integer) 7000
4) 1) "127.0.0.1"
2) (integer) 7003

4、完整安装视频：

见附件。